/Engine/Source/Runtime/Core/Public/Async/AsyncFileHandleNull.h
Submit an async request and/or wait for an async request
A request for the read. This is owned by the caller and must be deleted by the caller.
virtual [IAsyncReadRequest](API\Runtime\Core\Async\IAsyncReadRequest) * ReadRequest ( int64 Offset, int64 BytesToRead, EAsyncIOPriorityAndFlags PriorityAndFlags, FAsyncFileCallBack * CompleteCallback, uint8 * UserSuppliedMemory )